Thomas p



T. P. CAIN. HUB PULL-OUT ATTACHMENT.

APPLICATION FILE-D APR.18,1921.

1,%8,389 Patented Jan. MP, 1922.

llllilllil INVENTOR.

Tfiomas P Cain HUB PULL-GUT ATTACHMENT.

Application filed npril 18,

To aZZ whom it may concern:

Be it known that l. THOMAS Carr citizen 1"- the United States, and resident of Wichita, in the county of Sedgwick and State of Kansas, have invented a certain new and useful Hub Pull-Gut Attachment, of which the followingis specification.

My invention relates to hub pull-out attachments for motor-vehicles; being de signed for use in eXtricat-ing a motor-vehicle 3y its own power from a situation in which one or more of the vehicle wheels are sunken so deeply in mud or sand that tire-chains or mud-hooks are useless.

My device consists of a spool attachment for either rear hub of any make of motorvehicle having threaded-on hub-caps. To use the attachment, the hub-cap is removed and the attachment threaded upon the hub extension. A cable is then hooked to the spool and attached to a stake driven into the ground ahead 01" the vehicle. lVhen power is applied to the rear wheels through the clutch the spool winds the cable upon itself, thereby forcing the vehicle forward. @ne object of the invention isto make the spool of as small a diameter as possible. A further object, is to provide for using the same size of spool for all malres of cars and still provide for fitting the spools to the various sizes and threads of hubs; also, for making the device serve as wheel-retainer on wire wheels.

These and other objects are attained by the constructions illustrated in the accompanying drawings, in which Fig. 1 is an elevation partly in section, and Big. 2, an end elevation, of my standard pull-out spool detached; Fig. 3 is a partly sectional elevationo't an artillery wheel with such a spool substituted for its hub-cap; Fig. i is a partly sectional elevation, and Fig. 5, an elevation, of my adapter for smaller hubs of artillery wheels; Fig. 6 is a partly sectional elevation and Fig. 7, an elevation of my adapter for wire wheels; Fig. 8 is a partly sectional elevation of an artillery wheel with a smaller hub, on which is shown my spool with its adapter; Fig. 9 is a partly sectional elevation of a wire wheel with my device substituted for the hub-cap.

As shown on Figs. 1, 2 and 3, the attachment for artilleryavheel hubs of larger sizes consists of a hollow iron or steel spool, 1. provided with a cable-retaining flange 2 on Specification of Letters Patent.

PthhkQ lt lili J l9, 12922.

1921. Serial No. eeaiel.

its outer end. The spools inner end is reenorced and is CUL- with an internal thread, 2. Integral reenforcing bosses 8 are formed at opposite points in the spool, in which two holes at, of proper diameter to receive a cable hook, are or drilled.

As hub-caps on opposite sides of motorcars are oppositely threaded, the thread 2 may be made right-hand in some of the spools and left-hand in others for commercial reasons. [is righ -hand hubs are left-hand threaded, and vice versa, these spools will be self-retaining when in use as described.

To apply this same s'oool (as size) to smaller hubs of wooden wheels, l provide for Wire wheels.

The hub-caps of some wire wheels are so constructed as to term retainers for said wheels. For use on the hubs of wire wheels, I provide a special adapter, 10 (Figs. 6, 7 and 9) which diii'ers from adapter 6 only in having; an extension 12 which. receives the interior hread 13, which can be threaded upon the end of the axle. The chaintered end it oi extension 12, serves to retain the hub 15 in the same position as when the regular hub-cap is in place.

To use this device for pulling the vehicle out of the mud, a stake, or an iron rod, driven at an angle some distance ahead of the vehicle, and a cable tied to the rod or stake. On the other end of this cable is securely fastened a hook adapte to be passed through either of the holes d in the spool. The cable must be passed below the spool, as shown. The remainder of the op eration has been described hereinbeiore.

The small diameter of my spools is advantageous in that itcauses the power of the motor to be more effectively applied to the tractive effect upon the vehicle.

After being used, the spool will be tightly jammed upon the hub or axle, and in order to unscrew the spool it may be necessary to insert a rod or a large'screwdriver through the holes 4L and use the rod or tool as a lever.

I am aware that there has been patented a pull-out spool adapted for attachment to the spokes of a Wheel, and such I disclaim.

lVhat I claim, is:

1. In a device of the class described, a cylindrical spool having a flanged outer end as an integral partoi the spool, the inner end of said spool being of increased Wall thickness and threaded on its inner surface; a pair of bosses, diametrically opposed on the inner Wall of the spool intermediate the flanged end. and the threaded end and an opening through each boss.

2Q In a device of the class described, a cylindrical spool having a flanged outer end as an integral part of the spool, the inner end of said spool being of increased Wall thickness and threaded on its inner surface;

a pair oi": bosses, diametrically opposed on the inner Wall of the spool intermediate the flanged end and the threaded end and an opening through each boss; and a bushing,

externally and internally threaded, in com- 

